EP3316046A1 - Verbessertes uhrwerk - Google Patents

Verbessertes uhrwerk Download PDF

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Publication number
EP3316046A1
EP3316046A1 EP16195405.2A EP16195405A EP3316046A1 EP 3316046 A1 EP3316046 A1 EP 3316046A1 EP 16195405 A EP16195405 A EP 16195405A EP 3316046 A1 EP3316046 A1 EP 3316046A1
Authority
EP
European Patent Office
Prior art keywords
pivot axis
zones
magnetic
tangential
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16195405.2A
Other languages
English (en)
French (fr)
Other versions
EP3316046B1 (de
Inventor
Gianni Di Domenico
Jérôme Favre
Dominique Léchot
Baptiste Hinaux
Olivier Matthey
Jean-Jacques Born
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP16195405.2A priority Critical patent/EP3316046B1/de
Priority to JP2017142525A priority patent/JP6397093B2/ja
Priority to US15/672,478 priority patent/US10114340B2/en
Priority to CN201710795349.2A priority patent/CN107976889B/zh
Priority to RU2017135465A priority patent/RU2743149C2/ru
Publication of EP3316046A1 publication Critical patent/EP3316046A1/de
Priority to HK18113079.7A priority patent/HK1253930A1/zh
Application granted granted Critical
Publication of EP3316046B1 publication Critical patent/EP3316046B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
    • G04C5/005—Magnetic or electromagnetic means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B1/00—Driving mechanisms
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/10—Escapements with constant impulses for the regulating mechanism
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/10—Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/26—Compensation of mechanisms for stabilising frequency for the effect of variations of the impulses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs

Definitions

  • the invention relates to a clockwork mechanical movement, comprising a blade resonator mechanism which comprises at least one inertial element oscillating about a first axis of pivoting under the action of mechanical elastic return means comprising a plurality of fixed flexible blades on the one hand, directly or indirectly, to a structure of said resonator mechanism, and on the other hand, directly or indirectly, to said at least one inertial element, said resonator mechanism being coupled with a magnetic exhaust mechanism which comprises at least one movable escapement pivoting about a second pivot axis and subjected to a torque exerted by at least one energy source, and said at least one inertial element having at least two first magnetized zones at its periphery, arranged to cooperate directly with second magnetic zones that includes a said exhaust mobile and partially superimposed with i projected on a projection plane perpendicular to said first pivot axis.
  • the invention also relates to a watch comprising at least one such movement.
  • the invention further relates to a magnetic escape wheel arranged to pivot about a second pivot axis, and having magnetic zones at its periphery.
  • the invention relates to the field of watch movements comprising blade resonators, and comprising magnetic escape mechanisms.
  • Magnetic escapements have been known since the years 1960-1970, and have been the subject of patent applications: US 2946183 in the name of Clifford , JPS 5240366 , JPS 5245468U , JPS 5263453U . These devices are often not easy to integrate into a watch, because of their size. Above all, they have the disadvantage of being anisochronous, that is to say that the maintenance disrupts the resonator operation, and the value of this disturbance of operation varies with the amplitude of oscillation.
  • the invention proposes to make an isochronous mechanical oscillator comprising a flexible blade resonator maintained by a magnetic escapement.
  • the anisochronism of the resonator must be compensated for by the anisochronism of the exhaust delay.
  • the isochronism corrector is an improvement of the exhaust which aims to achieve this compensation.
  • the invention thus relates to an oscillator comprising a resonator with flexible blades maintained by a magnetic escapement with isochronism corrector.
  • the invention relates to a watch movement according to claim 1.
  • the invention also relates to a watch comprising at least one such movement.
  • the invention further relates to a magnetic escape wheel according to claim 11.
  • the present description is based, in a non-limiting manner, on the magnetic escape mechanism described in the document WO2015 097172 .
  • the escape wheel is arranged with magnets in a particular configuration, and in zones that make it possible to produce a small controlled disturbance on the variation of the path due to the maintenance.
  • FIG. 1 and 2 An oscillator according to the invention is illustrated by the Figures 1 and 2 .
  • This oscillator comprises a resonator with flexible blades, maintained by a magnetic escapement.
  • Two magnets located on the inertial mobile of the resonator are here sandwiched between two disks, which includes, in this particular non-limiting case, the escape wheel.
  • the magnetic escape mechanism can also be at a single level
  • At least one disc of the escape wheel comprises a first row of peripheral, tangential or substantially tangential magnets, hereinafter referred to as "tangential magnets", which are the magnets intended to cooperate in repulsion with the magnets of the resonator.
  • At least one disc of the escape wheel comprises a second row of compensating magnets, whose function is to adjust the exhaust delay, so as to compensate for the possible anisochronism of the resonator, way to get an oscillator that is globally isochronous.
  • these compensating magnets are radial, or substantially radial, and are hereinafter referred to as "radial magnets",
  • one of the tangential magnets of the escape wheel approaches the position of the right magnet, said first magnet, of the resonator which is thus pushed to the right, and the magnet of the left, said second magnet , the resonator then enters the air gap of the escape wheel in an area where there is no tangential magnet.
  • the isochronism corrector results from the cooperation of compensating magnets of the escape wheel with the first magnet or the second magnet of the resonator.
  • we can influence the progress of the oscillator by positioning magnets, and in particular these radial magnets, near the magnet of the resonator which enters the escape wheel. The same goes for the second alternation between t 5T / 8 and 7T / 8.
  • the residual anisochronism that must be corrected is weak, whether it comes from the exhaust or the resonator. Therefore, care must be taken to produce a variation in operation that is low and whose value varies with the amplitude of oscillation.
  • the compensating magnets substantially in the radial direction on the wheel, or strictly in the radial direction of the wheel as illustrated in the figures, in an area adjacent to the trajectory of the wheel. the magnet of the resonator.
  • the dimensions (length, width) of the radial magnets, as well as their radial position, are finely adjusted so that the dependence on the oscillation amplitude of the path variation exactly compensates for the residual anisochronism of the resonator or the exhaust. This adjustment must be made case by case, adapting the geometry of the radial magnets. Note that the width can also be variable depending on the radial distance.
  • the mechanism comprises mechanical anti-stall stops: the escape wheel is equipped with a star and the element inertial, including a pendulum, the resonator is equipped with two fingers. These elements act as mechanical stops during a shock that would cause the stall of the magnetic escapement.
  • This particular geometry, with two fingers on the inertial element makes it possible to obtain complete safety in the following direction: at each instant, one of the two fingers penetrates the zone of the abutments which are on the wheel, in order to ensure the anti-stall in case of shock. Note that there is no mechanical contact between these elements during normal operation of the magnetic escapement.
  • the mechanical clockwork movement 1000 comprises a resonator mechanism 100 with blades, which comprises at least one inertial element 10 oscillating about a first pivot axis D1 under the action of return means mechanical elastic 11.
  • These mechanical elastic return means 11 comprise a plurality of flexible blades 13 fixed on the one hand, directly or indirectly, to a structure 12 of the resonator mechanism 100, and on the other hand, directly or indirectly, to at least one inertial element 10 .
  • This resonator mechanism 100 is coupled with a magnetic escapement mechanism 200, which comprises at least one escapement wheel 20 pivoting about a second pivot axis D2, and which is subjected to a torque exerted by at least one source of energy.
  • energy 300 such as a barrel or the like.
  • At least one such inertial element 10 comprises at least two first magnetized zones 15 at its periphery, arranged to cooperate directly with second magnetized zones 25 that includes an escapement mobile 20 and partially superimposed with it in projection on a projection plane perpendicular to the first pivot axis D1, a single first magnetized zone 15 cooperating with at least a second magnetized zone 25 of the escapement wheel 20 at a given instant.
  • this at least one escapement wheel 20 comprises a plurality of second tangential magnetized zones, which are each arranged substantially tangentially, and each arranged to push back one of the first magnetized zones 15.
  • the movement 1000 comprises isochronism correction means combining, on the one hand, some of the first magnetized zones 15, and on the other hand, compensating magnets 27 arranged at the level of the at least one escape mobile 20.
  • Each compensating magnet 27 is arranged near a second adjacent tangential magnet zone 25, and exerts a leakage field in another direction than that of the field of the second adjacent tangential magnet zone 25.
  • the intensity of the leakage field is small compared to that of the field of the second adjacent tangential magnet area.
  • This leakage field is sized to interact with one of the first magnetized zones 15, and to produce a small variation of the resonator mechanism 100.
  • At least one escapement mobile 20 comprises a plurality of such compensating magnets 27, which constitute radial magnetic zones arranged to limit the exhaust delay, in cooperation with the first ones.
  • magnetic zones 15 which comprises an inertial element 10 at its periphery, to ensure the isochronism of the resonator mechanism 100.
  • each compensating magnet 27 extends in line with a second tangential magnetized zone 25.
  • At least one inertial element 10 has at its periphery two fingers 16 extending radially, with respect to the first pivot axis D1, beyond the first magnetized zones 15.
  • the escapement wheel 20 comprises, alternately with the second tangential magnetized zones 25, a plurality of abutments, in particular radial abutments 26, each centered on the second pivot axis D2, and arranged to constitute mechanical means of anti-rotation. recess, in cooperation with one of the fingers 16 forming a stop.
  • the geometry chosen, with two fingers 16 on the inertial element, makes it possible to obtain total safety in the following direction: at each instant, one of the two fingers 16 penetrates the zone of the abutments which are on the wheel, so that to ensure the anti-stall in case of shock.
  • a total safety of the resonator mechanism 100 is thus ensured, thanks to the arrangement of this plurality of radial stops 26, which is arranged to cooperate, at any time, with one or other of the fingers 16 forming a stop.
  • the radial stops 26 together form a star 260 centered on the second pivot axis D2.
  • the fingers 16 extend substantially in a circle C centered on the first pivot axis D1.
  • the compensating magnets 27 extend radially, with respect to the second pivot axis D2, beyond the radial extent of the radial stops 26.
  • At least one inertial element 10 comprises a plurality of flyweights 17 of adjustable inertia allowing, on the one hand, the adjustment of the frequency, and on the other hand, the adjustment of the position of the center of the inertia of the inertial element 10, or of the entire moving assembly of the resonator 100, on the first pivot axis D1.
  • the resonator mechanism 100 is a cross-wound resonator, the mechanical return means 11 comprising a plurality of blades 13 extending over substantially parallel levels, at a distance from each other. others, and, in projection on the plane of projection, crossing at the first pivot axis D1.
  • the invention also relates to a watch 2000 comprising at least one such movement 1000.
  • the invention also relates to a magnetic escapement wheel 20 arranged to pivot about a second pivot axis D2, and having magnetic zones 25 at its periphery.
  • the second magnetized zones 25 are each arranged substantially tangentially
  • the magnetic escapement wheel 20 comprises compensating magnets 27, each compensating magnet 27 being arranged near a second adjacent tangential magnet zone 25, and exerting a leakage field in a direction other than that of the field of the second zone 20 and the intensity of the leakage field is small compared with that of the field of the second adjacent tangential magnet zone 25.
  • each compensating magnet 27 extends in line with a second tangential magnetized zone 25.
  • the escapement wheel 20 comprises, alternately with the second tangential magnetized zones 25, a plurality of radial abutments 26 each oriented on the second pivot axis D2 and arranged to constitute mechanical means of anti-recess.
  • the radial stops 26 together form a star 260 centered on the second pivot axis D2.
  • the compensating magnets 27 extend radially, with respect to the second pivot axis D2, beyond the radial extent of the radial stops 26.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Clocks (AREA)
  • Micromachines (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
EP16195405.2A 2016-10-25 2016-10-25 Verbessertes uhrwerk Active EP3316046B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP16195405.2A EP3316046B1 (de) 2016-10-25 2016-10-25 Verbessertes uhrwerk
JP2017142525A JP6397093B2 (ja) 2016-10-25 2017-07-24 最適化された計時器用ムーブメント
US15/672,478 US10114340B2 (en) 2016-10-25 2017-08-09 Optimised timepiece movement
CN201710795349.2A CN107976889B (zh) 2016-10-25 2017-09-06 优化的钟表机芯
RU2017135465A RU2743149C2 (ru) 2016-10-25 2017-10-05 Оптимизированный часовой механизм
HK18113079.7A HK1253930A1 (zh) 2016-10-25 2018-10-12 優化的鐘錶機芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16195405.2A EP3316046B1 (de) 2016-10-25 2016-10-25 Verbessertes uhrwerk

Publications (2)

Publication Number Publication Date
EP3316046A1 true EP3316046A1 (de) 2018-05-02
EP3316046B1 EP3316046B1 (de) 2019-07-31

Family

ID=57189958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16195405.2A Active EP3316046B1 (de) 2016-10-25 2016-10-25 Verbessertes uhrwerk

Country Status (6)

Country Link
US (1) US10114340B2 (de)
EP (1) EP3316046B1 (de)
JP (1) JP6397093B2 (de)
CN (1) CN107976889B (de)
HK (1) HK1253930A1 (de)
RU (1) RU2743149C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757685A1 (de) 2019-06-26 2020-12-30 The Swatch Group Research and Development Ltd Trägheitsbewegungselement für uhrresonator mit einer vorrichtung zur magnetischen wechselwirkung, die gegenüber dem äusseren magnetfeld unempfindlich ist

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD853879S1 (en) * 2017-09-15 2019-07-16 Patek Philippe Sa Geneve Corrector for timepieces
CH714992A9 (fr) * 2019-01-24 2020-01-15 Csem Centre Suisse Delectronique Et De Microtechnique Sa Régulateur horloger mécanique.
EP3767397B1 (de) 2019-07-19 2022-04-20 The Swatch Group Research and Development Ltd Uhrwerk mit einem drehelement, das eine magnetisierte struktur mit periodischer konfigurierung besitzt

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946183A (en) 1955-06-14 1960-07-26 Horstmann Magnetics Ltd Self-starting magnetic escapement mechanisms
JPS5240366A (en) 1975-09-27 1977-03-29 Jeco Co Ltd Escapement wheel for magnetic escapement
JPS5245468U (de) 1975-09-27 1977-03-31
JPS5263453U (de) 1975-11-04 1977-05-11
WO2015097172A2 (fr) 2013-12-23 2015-07-02 The Swatch Group Research And Development Ltd Dispositif regulateur de la vitesse angulaire d'un mobile dans un mouvement horloger comprenant un echappement magnetique
EP2891930A2 (de) 2013-12-23 2015-07-08 The Swatch Group Research and Development Ltd. Vorrichtung zur Regulierung der Winkelgeschwindigkeit einer Triebfeder in einem Uhrwerk, das einen magnetischen Hemmungsmechanismus umfasst

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
JPS5428665A (en) * 1977-08-05 1979-03-03 Seikosha Kk Magnetic escapement
JP3627616B2 (ja) * 2000-03-17 2005-03-09 セイコーエプソン株式会社 電子制御式機械時計
EP2557460A1 (de) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metallanker mit Polymer-Hörnern
EP2874023A1 (de) * 2013-11-13 2015-05-20 ETA SA Manufacture Horlogère Suisse Uhr, die eine Entkoppelung zwischen den Energieübertragungsmitteln und den Zeitzählmitteln umfasst
WO2015096976A2 (fr) * 2013-12-23 2015-07-02 Nivarox-Far S.A. Resonateur magnetique ou electrostatique
EP2998801A1 (de) * 2014-09-19 2016-03-23 The Swatch Group Research and Development Ltd. Magnetische Ankerhemmung, und Gangeinstellvorrichtung eines Uhrwerks
EP2990885B1 (de) * 2013-12-23 2017-07-26 ETA SA Manufacture Horlogère Suisse Mechanisches Uhrwerk mit magnetischem Hemmungsmechanismus
EP2908185B1 (de) * 2014-02-17 2017-09-13 The Swatch Group Research and Development Ltd. Wartungs- und Regulierungsgerät eines Uhrenresonators
EP3035127B1 (de) * 2014-12-18 2017-08-23 The Swatch Group Research and Development Ltd. Stimmgabeloszillator einer stimmgabelgesteuerten Uhr
CH710759A2 (fr) * 2015-02-20 2016-08-31 Nivarox Far Sa Oscillateur pour une pièce d'horlogerie.
EP3128379B1 (de) * 2015-08-04 2019-10-02 The Swatch Group Research and Development Ltd. Hemmung mit hemmungsrad mit feldrampen und vorrichtung zur rücklaufsicherung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946183A (en) 1955-06-14 1960-07-26 Horstmann Magnetics Ltd Self-starting magnetic escapement mechanisms
JPS5240366A (en) 1975-09-27 1977-03-29 Jeco Co Ltd Escapement wheel for magnetic escapement
JPS5245468U (de) 1975-09-27 1977-03-31
JPS5263453U (de) 1975-11-04 1977-05-11
WO2015097172A2 (fr) 2013-12-23 2015-07-02 The Swatch Group Research And Development Ltd Dispositif regulateur de la vitesse angulaire d'un mobile dans un mouvement horloger comprenant un echappement magnetique
EP2891930A2 (de) 2013-12-23 2015-07-08 The Swatch Group Research and Development Ltd. Vorrichtung zur Regulierung der Winkelgeschwindigkeit einer Triebfeder in einem Uhrwerk, das einen magnetischen Hemmungsmechanismus umfasst

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757685A1 (de) 2019-06-26 2020-12-30 The Swatch Group Research and Development Ltd Trägheitsbewegungselement für uhrresonator mit einer vorrichtung zur magnetischen wechselwirkung, die gegenüber dem äusseren magnetfeld unempfindlich ist

Also Published As

Publication number Publication date
CN107976889B (zh) 2019-11-08
RU2017135465A3 (de) 2021-01-19
RU2743149C2 (ru) 2021-02-15
US10114340B2 (en) 2018-10-30
US20180113423A1 (en) 2018-04-26
JP2018072317A (ja) 2018-05-10
EP3316046B1 (de) 2019-07-31
HK1253930A1 (zh) 2019-07-05
RU2017135465A (ru) 2019-04-05
CN107976889A (zh) 2018-05-01
JP6397093B2 (ja) 2018-09-26

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